反应详情

1,1-Dimethylethyl 4-[4-[(methyl[(1R)-1,2,3,4-tetrahydro-1-naphthalenyl]amino]-carbonyl]-2-thiazolyl]-1-piperidinecarboxylate (i.e. the product of Example 6, Step B) (2.4 g, 5.26 mmol) was dissolved in 20 mL of a mixture of dichloromethane and methanol (1:1), and 13.15 mL (52.6 mmol) of 1 N HCl in dioxane was added. The reaction mixture was stirred at room temperature for 2 h and then concentrated under reduced pressure. The residue was dissolved in 20 mL of methanol and concentrated under reduced pressure (this procedure was repeated 3 times) resulting in 1.7 g of the title compound as a solid.

1. additionwas added
2. concentrationconcentrated under reduced pressure
3. dissolutionThe residue was dissolved in 20 mL of methanol
4. concentrationconcentrated under reduced pressure (this procedure